Add README and LICENSE

LICENSE

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+MIT License
+
+Copyright (c) 2022 Aelita4
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# sshmon
+### Utility to monitor uptime of servers/services
+
+## First configuration
+1. Create docker image
+- `$ docker build -t sshmon .`
+
+2. Setup containers
+- `$ docker-compose up -d`
+
+  - This will open ports 3306 for database, 8080 for main app and 8081 for phpMyAdmin
+
+3. Create database and tables
+- Script does not create database and tables by default
+  - Create database `sshmon` with 2 tables: 
+    <table>
+        <thead>
+            <tr>
+                <th colspan=3>ips</th>
+            </tr>
+        </thead>
+        <tbody>
+            <tr>
+                <td>Name</td>
+                <td>Type</td>
+                <td>Extra</td>
+            </tr>
+            <tr>
+                <td>id</td>
+                <td>int</td>
+                <td>AUTO_INCREMENT PRIMARY KEY</td>
+            </tr>
+            <tr>
+                <td>ip</td>
+                <td>varchar(255)</td>
+                <td></td>
+            </tr>
+        </tbody>
+    </table>
+    <table>
+        <thead>
+            <tr>
+                <th colspan=3>users</th>
+            </tr>
+        </thead>
+        <tbody>
+            <tr>
+                <td>Name</td>
+                <td>Type</td>
+                <td>Extra</td>
+            </tr>
+            <tr>
+                <td>id</td>
+                <td>int</td>
+                <td>AUTO_INCREMENT PRIMARY KEY</td>
+            </tr>
+            <tr>
+                <td>username</td>
+                <td>varchar(255)</td>
+                <td></td>
+            </tr>
+            <tr>
+                <td>password</td>
+                <td>varchar(255)</td>
+                <td></td>
+            </tr>
+        </tbody>
+    </table>
+
+4. Register new account in app
+5. Login
+6. Enjoy!
+